The Rice-Rutgers team developed a computer program that determines the optimal route for a salesman visiting 13,509 cities, exceeding previous limits of 2,892 cities. The program relies on sophisticated algorithms and parallel processing, with the code running to over a thousand pages if printed.
Researchers at California Institute of Technology successfully teleported a quantum state of light from one end of an optical bench to the other. The process, known as quantum teleportation, enables information transmission at the speed of light without physical medium.
Researchers at Carnegie Institution use X-ray diffraction to determine iron's elasticity at high pressures, which could explain seismic anisotropy in the inner core. The findings suggest the inner core is close to melting and may contain additional components with low shear-wave velocities.
Researchers found supernovas are fainter than expected, suggesting the universe has expanded more slowly in the past and is now accelerating. This discovery supports the Cosmological Constant theory, which had been dismissed by Albert Einstein, and has significant implications for our understanding of the universe's behavior.
The NEAR mission will orbit and study asteroid Eros for a year, taking millions of measurements and images to determine its physical and geological properties. The spacecraft will face significant engineering challenges in maneuvering within 9 miles of the asteroid's surface.
A team of astronomers led by Bo Reipurth and John Bally observed that ultraviolet radiation from nearby massive stars destroyed the cocoons of gas and dust surrounding young stars, revealing billions of miles long supersonic jets. The destruction has provided new insight into star birth and evolution, and may have implications for the ...
Researchers have found that the Earth's inner core consists of two distinct parts: a lower area surrounded by an uneven upper layer with different material properties. This discovery is likely to affect the current model of how the Earth and its magnetic field came into being.
Researchers Xiaodong Song and Don Helmberger found two distinct layers in the inner core: a spherical lower part and an uneven upper layer with different material properties. The findings may affect the formation of the Earth's magnetic field.
The American Association of Pharmaceutical Scientists (AAPS) Annual Meeting will focus on key topics such as emerging trends in drug design and development. Recent research also highlights the risks of sound-alike drugs causing prescription errors and the impact of high altitudes on drug efficacy.
Scientists are using NASA Bioreactors to culture breast cells on Earth, learning what controls their growth and how to thwart malignancies. The research has the potential to improve healthcare for women, including those traveling to Mars, by developing new therapies that target cancer's genetic weaknesses.
Researchers John Toner and Yuhai Tu develop a theory explaining how birds move as a single unit despite frequent misjudgments and limited visibility. By making analogies to physics phenomena like magnet alignment and fluid flow, they provide insights into other animal collectives and even auto traffic flow.
A protein on sperm surfaces is essential for binding to eggs and traveling into the oviduct. Mice without this protein have reduced fertility rates, opening possibilities for new male contraceptives and treatments for infertility.
A study found that children of divorce are more likely to become smokers and problem drinkers as adults. For boys, divorce increases the likelihood of problem drinking, while girls from divorced families have similar rates of smoking and problem drinking as those from intact families.
Researchers have determined the complete crystal structure of cytochrome bc1, a crucial protein complex in the mitochondrial respiratory chain. This breakthrough has provided detailed images of the complex at an unprecedented resolution of 3 angstroms, shedding light on its role in energy production for living cells.
Benjamin Hasse, a forestry major at Purdue University, will spend his first semester of junior year on Antarctica helping researchers. He will gain valuable experience in harsh environments and develop skills that can benefit his future career.
The Aerospace Medical Association has issued medical guidelines for air travel to help doctors advise patients with illnesses. These guidelines provide recommendations for patients with conditions such as pulmonary disease, asthma, and emphysema, emphasizing the importance of stable health before traveling.
The University of Delaware is pioneering an effort to educate students as problem solvers through 21st-century challenges. Using problem-based learning methods, students tackle real-world problems and develop higher-order thinking skills such as evaluation and analysis.
Purdue University researchers are constructing a Mach 6 wind tunnel to study supersonic airflow and its effects on aircraft. The new facility will conduct experiments in airstreams traveling at six times the speed of sound, producing a quiet-flow Reynolds number of 13 million.
A University of Colorado at Boulder research team found that Earth is alternately peppered by extremely high-energy electrons from the sun and Jupiter. These 'killer electrons' are accelerated to energies thousands of times higher than usual near Earth, posing a threat to spacecraft and satellites.
Researchers propose a novel approach using shock waves to detect plastic land mines, leveraging acoustic signals reflected off buried objects in granular beds like soil. The system could provide critical information about the size and shape of an object, helping identify land mines.
Researchers have found that the Earth's inner core is rotating at a faster rate than its outer layers, with estimates suggesting it rotates four to 12 times slower. The independent rotation is thought to be caused by convection in the molten iron outer core, which produces the Earth's magnetic field.
Diane Waddle and her team discover a vast collection of fossils, including those of tiny bats, shrews, birds, frogs, adult and juvenile primates, in the Bone Cave in Botswana. The find is significant as it helps fill the gap in the fossil record of Botswana.
Researchers found that groups outperform individuals in solving subjective tasks, but group confidence can be unjustified. Confidence should be placed in context of the problem being solved, as objective issues may yield clearer results than complex problems with alternative solutions.
Scientists successfully converted energy in the form of light into matter, creating electrons and positrons. The experiment used high-energy electrons and photons to produce an incredible amount of power in a tiny area, marking a major breakthrough in understanding quantum electrodynamics.
A recent study and court ruling have led to the listing of jaguar as an endangered species in the US. The decision is based on evidence of rare sightings and potential population dispersal from Mexico.
Nomad, an autonomous wheeled robot, is undertaking a 40-day, 125-mile journey through the Atacama Desert to explore terrain, navigate, and conduct remote science. The experiment aims to develop technologies for planetary exploration and provide a unique opportunity for public teleoperation.
Researchers analyzed seismic data to determine cause of 1993 event in Australian outback. An iron meteorite over 3 meters in diameter is suggested as possible cause.
A new study published in Developmental Psychology found that mothers' behavior and perception of their child's temperament can influence a child's problem-solving abilities. Children rated as more difficult by their mothers were more likely to struggle with task completion and had lower IQ scores.
Researchers found an unexpected orientation in space, measured through light polarization from distant galaxies. The 'corkscrew effect' indicates a universal axis that orients the universe.
Cornell University psychologist Romi Nijhawan's experiment shows that the brain can decompose yellow into its constituent red and green based on motion of the stimulus. Human retinas cannot sense motion on their own, but the brain uses a process called motion extrapolation to correct for this delay.
Research by Indiana University kinesiologists suggests that encouraging leg movements on a miniature treadmill can lead to an eight-to-12 month improvement in the time Down syndrome babies take their first independent steps. This intervention is found to decrease family stress and facilitate cognitive, spatial, and social development.
A Wake Forest University professor's applied mathematics enable new adaptive optics technology to improve the sight of ground-based telescopes and new laser weapons, resulting in 'Hubble-like' improvements. The tech also enhances missile defense capabilities against enemy missiles and space junk.
Researchers developed a model to explain the Earth's inner core rotating faster than the rest of the planet, driven by electromagnetic forces and outer core fluid motions. The model provides insights into the mysterious processes generating the magnetic field deep within the Earth's core.
Researchers at the University of Washington have discovered a correlation between lightning frequency and rainfall, which could lead to a new method for tracking precipitation in remote regions. The connection is thought to be due to ice particles that transfer electric charge when colliding in clouds.
Researchers tracked eight female leatherback turtles using satellite transmitters and found they prefer specific ocean corridors extending from Central America to the Galapagos Islands. The discovery highlights the importance of considering these corridors in conservation efforts, as international fishing fleets threaten turtle survival.
Researchers from UC Berkeley have disproved the hypothesis that the Earth's inner core is a perfectly aligned mass of iron crystals. Instead, they found that the crystals align themselves like boats in a circular eddy, driven by the rise of hotter iron toward the surface. This finding has implications for modeling the Earth's magnetic ...
A Brown University study reveals that many songbirds migrating south each autumn switch from insects to a berry-rich diet to store fat for the long haul. The study found that these 'pit stops,' crucial for tiny songbirds traveling thousands of miles, are under intense development and ecological pressure.
The Portal of the Future project combines advanced technologies, including weigh-in-motion systems, explosives detection, and hidden nuclear material detection, to prevent sabotage and terrorism at DOE sites. Researchers also assess commercial products like under-vehicle surveillance systems for potential use.
Researchers study sound waves traveling through the sun to probe its structure and improve solar models. The GONG data show that the sun's core spins at the same rate as its surface, a problem for understanding the solar system's formation.
A study found that most tractor-trailer truck right-turn warning signs only partially follow human factors guidelines. The researchers created a list of improved sign elements, including a signal word and pictorial representation of consequences. This article aims to design better warnings for safer road interactions.